1. abbreviation
n.①略语，缩写词 ②缩写
例句：
“Dr” is the written abbreviation of “Doctor”. Dr是Doctor的缩写形式。
2. abide
v.忍受，容忍
例句：
You have to abide by the referee s decision. 你必须服从裁判的决定。
3. abreast
ad.并排，并肩
例句：
The planes were flying four abreast. 飞机分成四架一排飞行。
4. acclaim
vt.称赞 n.赞赏
例句：
His work was acclaimed by art critics.他的作品受到艺术评论家的推崇。
5. acupuncture
n.针刺
例句：
I had acupuncture in my lower back.我在后腰上做了针灸。
6. advent
n.出现,到来
例句：
Swallows come by groups at the advent of spring. 春天来临时燕子成群飞来。
7. adversary
n.对手，敌手 a.敌手的
例句：
He saw her as his main adversary within the company.他将她视为公司中主要的对手。
8.afloat
ad./a.①漂浮地 ②在船上地
例句：
Somehow we kept the ship afloat. 我们想方设法使船没有下沉。
9. agitate
v.鼓动vt.使焦虑，使不安
例句：
His family are agitating to get him freed. 他的家人在多方游说将他释放。
10. ail
v.①困扰 ②得病，难受
例句：
This initiative is not the answer to what ails our educational system.这一方案并不能解决我们教育体制的弊病。
11. akin
a.相似的
例句：
Something akin to panic overwhelmed him.一种类似惊恐的感觉使他不知所措。
12. align
v.排成一行vt.与……结盟
例句：
Church leaders have aligned themselves with the opposition. 教会领袖和反对派站在了一起。
13. allot
vt.分配，配给
例句：
Try and allot 2 or 3 hours a day to revision. 每天设法抽出两三个小时复习。
14. allude
vi.暗指，影射
例句：
I didn t allude to anybody or anything.我并未影射任何人或任何事。
15. allure
vt.引诱，诱惑
例句：
Rewards allure men to brave danger. 重赏之下，必有勇夫。
16. almighty
a.全能的，万能的
例句：
Money is not almighty. 金钱并不是万能的。
17. amass
vt.积累，积聚
例句：
He amassed a fortune after the war.战后，他积累了大量财富。
18. amiable
a.和蔼可亲的,亲切的
例句：
The driver was an amiable young man. 司机是位和蔼可亲的年轻人。
19. analog
n.［C］类似物，相似体a.①模拟的 ②指针式的
例句：
The first generation of cell phones are analogue, commonly known as "Big Brother. " 第一代手机是模拟制式的，俗称“大哥大”。
20. anguish
n.极度痛苦，苦恼
例句：
Mark looked at him in anguish. 马克极为痛苦地看着他。
21. annex
vt.并吞，兼并
例句：
The Baltic republics were annexed by the Soviet Union in 1940. 1940年，波罗的海诸共和国被苏联吞并。
22. antagonism
n.对抗，敌对
例句：
There is still much antagonism between environmental groups and the oil companies. 环境组织与石油公司之间仍有很多敌意。
23. antenna
n.①触角，触须 ②天线
例句：
They erected a television antenna on the roof. 他们在屋顶上竖起了电视天线。
24. antonym
n.反义词
例句：
Give the synonym and antonym of this word. 给出这个词的同义词和反义词。
25. ape
n.类人猿vt.模仿
例句：
Man has evolved from the ape. 人是从类人猿进化来的。
26. appal
vt.使惊骇
例句：
The way we kill animals appals a lot of people. 我们这样屠杀动物令许多人震惊。
27. apprentice
vt.当学徒n.徒弟，学徒
例句：
She works in the hairdresser s as an apprentice. 她在美发店当学徒。
28. arbitrate
v.仲裁，公断
例句：
A committee will arbitrate between management and unions. 将有一个委员会来仲裁资方和工会的争端。
29. ardent
a.①热烈的 ②热心的
例句：
Ardent expectations were held by his parents for his college career. 他父母对他的大学学习抱着殷切的期望。
30. aspire
vi.追求，渴望，有志于
例句：
He aspired to become a lawyer. 他渴望成为一名律师。
31. assorted
a.各种各样的，混合的
例句：
The bowl contains assorted hard sweets. 碗里装着各种硬糖。
32. assortment
n.各种各样
例句：
The shop has a rich assortment of goods. 这个商店有各种各样的货品。
33. astray
ad.迷途
例句：
The letter had gone astray in the post. 这封信寄丢了。
34. asylum
n.①庇护，避难 ②精神病院
例句：
He has been granted asylum in France. 他在法国获得了政治庇护。
35. atrocity
n.暴行，残忍行为
例句：
Seeing such a terrible sight before his eyes, he was savaged by his enemy s atrocity. 看到眼前这恐怖的场景，他被敌方的暴行激怒了。
36. audit
n.①审计 ②审查vt.①审计 ②旁听
例句：
Start with an audit of existing services within the community. 从检查社区现有的服务开始。
37. augment
vt.扩大，增加，提高
例句：
Any surplus was sold to augment their income. 所有多余的东西都被卖了来增加他们的收入。
38. autobiography
n.自传
例句：
He published his autobiography last autumn. 他去年秋天出版了他的自传。
39. avenge
vt.为……报仇
例句：
He wanted to avenge his brother s death. 他要为弟弟的死复仇。
40. backyard
n.后院
例句：
The old man grew vegetables in his backyard. 老人在屋后院子里种了蔬菜。
41. bait
n.①饵 ②引诱物vt.招惹，挑衅
例句：
We used worms as bait. 我们用小虫子作诱饵。
42. barge
n.［C］平底载货船，驳船vi.冲撞，乱闯
例句：
Students tried to barge into the secretariat buildings. 学生们试图闯进秘书处大楼。
43. barometer
n.①晴雨表，气压计 ②指标,标志
例句：
The skin is an accurate barometer of emotional and physical health. 皮肤是准确的晴雨表，可以反映一个人身心的健康状况。
44. barracks
n.①营房 ②简陋的大房子
例句：
The barracks was inspected daily. 营房每天都受到检查。
45. bass①
n.①低音乐器 ②男低音a.低音的
例句：
Is it in the bass or the melody? 是低音的部分还是主调的部分？
46. bass②
n.鲈鱼
例句：
They unloaded their catch of cod and bass. 他们卸下捕获的鳕鱼和鲈鱼。
47. beak
n.①嘴，喙 ②鸟嘴状物
例句：
And ever since then, Raven has had a curved beak. 从那以后，所有的乌鸦都有了一张弯曲的嘴。
48. beckon
v.示意，召唤
例句：
She beckoned to the waitress to bring more wine. 她示意服务员再拿些酒来。
49. benevolent
a.仁慈的，仁爱的
例句：
A benevolent uncle paid for her to have music lessons. 一位叔叔慷慨解囊，出钱供她上音乐课。
50. benign
a.①良性的 ②和蔼的
例句：
He shook his head in benign amusement. 他好笑又宽厚地摇摇头。
